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Saverio Russo

ITALY • + Follow Edit Project

Jonas Nunes

BRAZIL
- 0
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Engineer

UNITED KINGDOM
- 0
- 0
SnCMuseum
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- 0
(DIY) C64iSTANBUL

TURKEY
- 750
- 825
4

SG-1000 CART 48K.png

Components

27C256

x 2

Description

SC-3000 GAME CART 32-48KB

SC-3000 GAME CART 32K-48K

This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe also the Sega Mark III and Sega Master System (Japanese). It uses the standard 27C256 32KB EPROM. A secondary 32KB EPROM is optional to reach 48KB (only first 16KB are used). Nothing else is needed. The 2x 0.1uF disc capacitors are the standard 25% tolerance 16V (even 25V) one used in almost all electronics of the time. GAME MEMORY MAP is $0000-$7FFF with 1 EPROM and $0000-$BFFF with 2 EPROMs (the second one is mapped from $8000-$BFFF).

Apr 10,2025

974 views

SC-3000 GAME CART 32-48KB

SC-3000 and SG-1000 game cart with optional second eprom to reach 48KB.

974

4

1

Published: Apr 10,2025

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Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) License

Under the Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) License.

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Topic

DIY Electronics

DIY Board SC-3000 SG-1000 48KB CARTRIDGE SEGA

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Jonas Nunes May 29,2026
Engineer Jun 06,2025
SnCMuseum Apr 13,2025
(DIY) C64iSTANBUL Apr 11,2025

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SC-3000 GAME CART 32-48KB SC-3000 GAME CART 32K-48KThis is a PCB specifically made to generate cartridges for the Sega SC-3000...
SC-3000 GAME CART 32K This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe a...
SC-3000 Sega Basic Level IIIA Sega Basic Level IIIA / Game cartridge for Sega SC-3000. It allows 2 rom layout. Now SRAM is optiona...

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